/Main/src/DynamicDataDisplay.Maps/Servers/FileServers/VEPathProvider.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Microsoft.Research.DynamicDataDisplay.Charts.Maps;



namespace Microsoft.Research.DynamicDataDisplay.Maps.Servers.FileServers

{

	public sealed class VEPathProvider : TilePathProvider

	{

		public override string GetTilePath(TileIndex id)

		{

			StringBuilder builder = new StringBuilder();



			int minLevel = 1;



			checked

			{

				for (int level = minLevel; level <= id.Level; level++)

				{

					char ch = '0';

					int halfTilesNum = (int)Math.Pow(2, id.Level - level);

					if ((id.X & halfTilesNum) != 0)

						ch += (char)1;

					if ((id.Y & halfTilesNum) == 0)

						ch += (char)2;

					builder.Append(ch);

				}

			}



			return builder.ToString();

		}

	}

}